US Bridges

N 5050 E over Snake River;heise Br

Fair

Jefferson County, Idaho · 1.3 N. 4.0 E. Ririe · Structure no. 000000000032420

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
341 ft
3 main spans
Daily traffic
560
2023 count
Owner
County
County Highway Agency

About this bridge

N 5050 E over Snake River;heise Br is a prestressed concrete stringer/multi-beam or girder carrying N 5050 E over Snake River;heise Br in Jefferson County, Idaho. It was built in 1975, so it is 50 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 560 vehicles a day, roughly 12% of them trucks, projected to reach 840 by 2042. The structure is 341 ft (103.9 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesN 5050 E
CrossesSnake River;heise Br
Location1.3 N. 4.0 E. Ririe
RouteCounty Highway 0
CountyJefferson County
StateIdaho
Coordinates43.64619, -111.70117
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length341 ft (103.9 m)
Longest span113 ft (34.4 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2023)
Projected traffic840 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N 5050 E over Snake River;heise Br built?

It was built in 1975, making it 50 years old in 2025.

What condition is N 5050 E over Snake River;heise Br in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does N 5050 E over Snake River;heise Br carry?

About 560 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is N 5050 E over Snake River;heise Br?

The structure is 341 ft (103.9 m) long with a longest span of 113 ft (34.4 m) and a deck 32 ft wide.

Who owns N 5050 E over Snake River;heise Br?

It is owned by the County Highway Agency.